A-LevelPhysicsForces, density and pressureMay/June 2013Paper 1 Q141 Mark
A uniform beam of mass 1.4 kg is pivoted at P as shown. The beam has a length of 0.60 m and P is 0.20 m from one end. Loads of 3.0kg and 6.0kg are suspended 0.35m and 0.15m from the pivot as shown. [Figure showing a beam pivoted at P with forces and distances indicated] What torque must be applied to the beam in order to maintain it in equilibrium?
A0.010 Nm
B0.10 Nm
C0.29 Nm
D2.8 Nm
✓ Correct Answer
The correct answer is D: 2.8 Nm
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🎯 Mark Scheme Breakdown
Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.
🔒
Unlock the Examiner's Analysis
Sign up for free to reveal the full examiner report, trap analysis, and mark scheme breakdown for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep